Finding the Fourth Proportional to 521,423.70, 782,135.55 and 166,463.70
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Solution
The fourth proportional to 521,423.70, 782,135.55 and 166,463.70 is: 249,695.55
Step by Step Solution
- Step 1: Write the proportion equation
521,423.70 : 782,135.55 = 166,463.70 : x - Step 2: Convert to fraction form
521,423.70/782,135.55 = 166,463.70/x - Step 3: Cross multiply
521,423.70x = 782,135.55 × 166,463.70 - Step 4: Simplify right side
521,423.70x = 130,197,177,554.54 - Step 5: Solve for x
x = 130,197,177,554.54/521,423.70 - Step 6: Final answer
x = 249,695.55
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.